Valency. II. Applications to molecules with first-row atoms

Gopinathan, M. S. ; Jug, Karl (1983) Valency. II. Applications to molecules with first-row atoms Theoretical Chemistry Accounts, 63 (6). pp. 511-527. ISSN 1432-881X

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Official URL: http://www.springerlink.com/content/23711478757025...

Related URL: http://dx.doi.org/10.1007/BF02394810

Abstract

A quantum chemical definition of valency proposed in Part I is used to calculate the valency of carbon, nitrogen, oxygen, lithium, beryllium and boron in a number of compounds with the SINDO1 method. It is demonstrated that consistency of the basis set is necessary for comparable results. The general features of valency and bonding in these molecules are discussed. The π-electron concept of free valence is generalised to sigma systems and atoms in molecules are classified as subvalent, normal or hypervalent. The relation between valency and natural hybrid occupancy is illustrated. The symmetry properties of natural hybrid orbitals are discussed by means of group theory. A preliminary attempt is made to relate covalency and covalent reactivity. Bond indices and the σ, π character of bonds are obtained by a suitable partitioning and projection of valency into bonding and antibonding contributions.

Item Type:Article
Source:Copyright of this article belongs to Springer-Verlag.
Keywords:Valency Of First-row Atoms; Free Valence; Bond Indices; Natural Hybrids
ID Code:15100
Deposited On:13 Nov 2010 06:47
Last Modified:02 Jun 2011 07:02

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